The special U.S. envoy to North Korea said Saturday there is no immediate plan for more talks with Pyongyang and urged patience from the countries seeking the North Korea"s nuclear disarmament, according to a report of the Associated Press. Stephen Bosworth, in Tokyo to brief Japanese Foreign Minister Katsuya Okada about his three-day meeting with North Korean officials this past week, said that the situation remained «difficult» and that the members of stalled disarmament talks should hold together to make a breakthrough. Bosworth, who had briefed officials in South Korea and China in earlier stopovers, called his Pyongyang visit «very businesslike, very candid, forward-looking.» But he said how and when the six-nation negotiations would resume is yet to be resolved. North Korea walked away from the talks _ which involve the two Koreas, China, Japan, the U.S. and Russia _ earlier this year following international criticism of its ambitions to develop long-range rocket technology. It vowed never to return. It conducted a nuclear test in April and restarted its nuclear facilities, drawing widespread condemnation and tighter U.N. sanctions. North Korea called it an issue between itself and the U.S. and demanded bilateral talks.